Terms Related to Disease Frequency Survey

• Longitudinal Survey

  Studies in which variables relating to an individual or group of individuals are assessed over a period of time.

• HIV Seroprevalence

  Studies of the number of cases where human immunodeficiency virus (HIV) is present in a specific population at a designated time. The presence in a ...

• Incidence

  The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at ...

• Sampling Study

  Studies in which a number of subjects are selected from all subjects in a defined population. Conclusions based on sample results may be attributed only ...

• Epidemiological Study

  Studies designed to examine associations, commonly, hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The ...

• Prevalence

  The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to ...

• Case-Referrent Study

  Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of ...